Automatic weft-replenishing mechanism for looms for weaving.



J. W= COOK.

AUTOMATIG WEFT RBPLENISHING MECHANISM FOR LOOMS FOB WBAVING.

APPLIUATIOH FILED MAY 7. 190B.

931,9971 Patented Aug. 24, 1909.

3 SHEETS-SHEET l.

Amzw. B. GRAHAM co. PHOfO-UTHOQMPMERQ, WASHNBfON. a. c.

v J. W. COOK. AUTOMATIC WEFT REPLENISHING MECHANISM FOR LOOMS FORWEAVING. APPLICATION FILED MAY 7. 1908.

'93 1 ,997. Patented Aug. 24, 1909.

3 SHEETSSHEET 2.

J. W. COOK. 7 AUTOMATIC WEPT REPLENISHING MECHANISM FOR LOOMSFORWEAVING.

APPLICATION FILED MAY 7. 1908.

93 1 ,997 Patented Aug. 24, 1909.

8 SHEETS-SHEET 3.

PATENT OFFIQE.

JOHN WILLIAM coax, or DIDSBURY, NEAR nalvcnasrna, ENGLAND.

AUTOMATIC WEFT-REPLENISHING MECHANISM FOR LOOMS FOR WEAVIN'G.

Specification of Letters Patent.

Patented Aug. 2t, 1903-.

Application filed May 7, 1908. Serial No. 431,455.

T 0 all whom it may concern:

Be it known that I, JOHN YVILLIAM CooK, machinist, of Didsbury, nearManchester, in the county of Lancaster, England, have invented certainnew and useful Improvements in and Connected with AutomaticVJeft-Replenishing Mechanism for Looms for Neaving, of which thefollowing is a specification.

My invention relates to mechanism for the purpose of supplying theshuttles of looms for weaving with cops, bobbins, pirns or the like ofweft or filling upon the breakage, exhaustion or partial exhaustion ofthe weft or filling within the working shuttle. I so arrange mymechanism that I can apply it either to under or over pick looms.

In order that my invention may be better understood I have appendedthree sheets of drawings whereon:

Figure 1. is a front view showing the device fixed to the loom. Fig. 2.is a side view showing the mechanism at rest. Fig. 3. is a plan view.Fig. 4 is a side view in section, showing the mechanism in action. Fig.5 is a side elevation showing the mechanism for regulating the fall ofthe cops, bobbins, pirns or the like within the magazine. Fig. 6 is afront elevation of Fig. 5. Fig. 7. is a plan view of Fig. 5. Fig. 8.shows a detent w in detail.

In carrying my invention into effect I attach or suitably couple to theweft fork holder of the loom or to any suitable feeler mechanism whichwill indicate the approaching exhaustion of the weft, a shaft or rod asuitably supported which I can extend across the loom or not as desired.In the arrangement of the parts as shown in the drawings the shaft a hasbeen extended across the loom. On the end of the shaft a farthest fromthe weft fork holder I mount or suitably afiix a short lever Z) which Icall the stud lever. The stud lever Z) carries a stud antifriction bowlor other suitable equivalent. In the drawings a stud c is shown attachedto b by means of a nut. In close proximity to the stud lever b- I placethe lever f suitably fulcrumed at g and carrying at its lower end ashort arm or dagger d. The said dagger (Z can be adjusted relatively tothe lever f and can swing or move axially upon the stud or othersuitable equivalent which attaches it to The dagger cZ rests upon thestud a carried by the lever Z). I attach to the loom framing p, p bymeans of the bracket Zr a hopper or magazine the sides of which areinadjust the sides Z and Z relatively one to another in order toaccommodate different lengths of cops, bobbins, pirns or the like. Intothis hopper or magazine I place the full cops, bobbins, pirns or thelike of weft or filling r. It will be seen that the lowest cop, bobbin,pirn or the like occupies a position immediately in front of the upperend of the lever f which is formed at this portion with a suitablebearing or pushing face h. Upon the under side of the slay 0 of theloomIfix a projection or stop in the form of a stud and constituting ahunter 6 which moves backward and forward with the slay as the latterbeats up the picks of weft. I pass the loose ends of weft from the cops,bobbins pirns or the like around a wire m, suitably supported, andthrough the bristles of a brush a but I do not bind myself to thismethod of retaining the said ends of weft.

For the sake of brevity, the term cop alone will be used hereinafter inthe description andclaims with the intention however of including alsosuch terms as bobbins and pirns.

The action of my device is as follows:- Immediately upon the exhaustionor breakage of the weft within the shuttle the weft fork acts in theusual way, but instead of knocking off the loom, operates the shaft aand causes it to make a part of a revolution. In the case of a loom inwhich feeler mechanism is employed it will of course be understood thatthe shaft a is caused to operate from the said feeler mechanism and notfrom the weft fork. The movement of a causes the lever Z) to move upward(reference to Fig. 4 will show the parts clearly). In consequence of theupward movement of b the stud c raises the dagger (Z and supports it inthe path of travel of the hunter 6' attached to the underside of theslay 0. I do not bind myself to this actual construction but can extendor lengthen'the lever f and suitably carry the dagger (Z so that ahunter projectic-n attached to the slay sword or other moving part cancome in contact with the said dagger. The forward movement of bunter epushes the dagger (Z backward causing the lever f to fulcrum on g. Theupper portion off including the bearing face it is thus caused to movetoward the front of the slay 0 and in doing so the bearing face itcoming in contact with the lowest cop, within the magazine pushes a fullcop, into the shuttle s and by dicated by Z and Z in the drawings. I candoing so expels the exhausted cop, r. (Fig. 4.) The upper portion of thelever f adjacent to the pusher face it is constructed in such a mannerthat upon the forward movement of the said pusher leverf the next copabove the one being forced into the shuttle is supported on said upperportion of said lever so that it and the one above it are supportedwithin the magazine. This is clearly shown in Fig. 4. I employ myfpeculiar formation of the upper portion 0 the pusher lever f incombination with mechanism for regulating the fall of the co s, withinthe magazine, which mechanism l describe later. I employ any suitabledevice in order to position the shuttle within the box in order toinsure the cop being accurately laced therein. Immediately after therepfenishing action the hunter 0 passing from contact with d, the springt draws the lever fback into its normal position.

I employ mechanism for the purpose of regulating the fall of the co s,in front of the usher face It and I show tais mechanism in igs. 5, 6, 7and 8. U on the shaft 7 which forms the pivot of the every I carry acrank I) attached at its outer end. to the end of the rack to. The rackas shown is provided with teeth which mesh with the teeth of a pinion asuitably carried on the magazine side. The pinion is compounded or hasattached to it a crescent, half moon or cup shaped piece of metal orother suitable material a forming a detent. Normally the concave side ofthe detent a is upward and supports the tip or nose only of a cop, as isshown in Fig. 7 7. Upon the action of the change mechanism the shaft gis oscillated and the rack 'w actuated to rotate the pinion a: and thedetent a. Part rotation only of the pinion takes place but sufficient toenable the cop, resting on the detent a to be deposited in front of thecurved upper part of lever f as seen as the latter recedes. The detenta." at the same time prevents the next uppermost cop, from movingdownward. Upon the movement outward of the pusher face 71 and theoscillation of the shaft 9 the rack to is again actuated but in thereverse direction. This action causes the pinion to again make part of arevolution and causes the detent a to assume its normal. position.

The swell t employed for the purpose of checking the shuttle as itenters the shuttle box is novel in itself. I so shape the face of theswell at its rear end i, that is the end farthest within the shuttlebox, and so cause it to project into the shuttle box that the incomingshuttle first comes into contact with this ortion of the swell. Theswell is caused to fu crum and by doing so brings the opposite end i orthe end nearest the entrance of the shuttle box into contact with theheel of the said incoming shuttle. I form the face of the swell t as isshown in my drawings especially in Fig. 4 in order to obtain a tightgrip upon the shuttle. Should the shuttle continue to move forward afterthe outer end of the swell has cone in contact with it the grip isincreased thus an effectual check upon the shuttle is obtained and anyrebound of the said shuttle is prevented. Further I make the swell 71formed with a slot for part of its length through which the empty copcan be ejected.

Having described my invention what I claim and desire to secure byUnited States Letters Patent is 1. In mechanism for automaticallyreplenishing loom shuttleswith weft, the combination with a copmagazine, of a lever having an upper portion projecting in a directionto horizontally eject one cop from the magazine and support the next oneabove it, said lever having a dagger pivoted to its lower portion, afixed hunter for said dagger, a lever arm adapted to be actuated uponthe exhaustion of the weft, and means carried by said lever arm forpositively lifting said dagger into line withthe bunter when said leverarm is actuated.

2. In mechanism for automatically replenishing loom shuttles with weft,the combina tion with a cop magazine having adjustable sides, of a leverhaving an upper portion projecting in a direction to horizontally ejectone cop from the magazine and support the next one above it, said leverhaving a dagger pivoted to its lower portion, a fixed bunter for saiddagger, a lever arm adapted to be actuated upon the exhaustion of theweft, and means carried by said lever arm for positively lifting saiddagger into line with the bunter when said lever arm is actuated.

3. In mechanism for automatically replenishing loom shuttles with weft,the combination with a cop magazine, of a lever having an upper portionprojecting in a direction to eject one cop from the magazine and supportthe next one above it, said lever having a dagger pivoted to its lowerportion, a fixed bunter for said dagger, a lever arm adapted to beactuated upon the exhaustion of the weft, means being provided forlifting said dagger into line with the hunter when said lever arm isactuated, a crank arm movable with the first-mentioned lever, a rackconnected with said crank arm, a pinion engaged with said rack, and acup-shaped detent within the magazine and operatively connected with theinion to be oscillated thereby, said detent lieing normally in positionto receive the tip of a cop in its concavity.

In testimony whereof I have affixed my signature, in presence of twowitnesses.

JOI-IN WILLIAM COOK.

Witnesses:

FRANK LASMITH, JOHN Jown'r'r.

